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The CT Analyzer Test Cards
6 The CT Analyzer Test Cards
6.1 Overview of Test Cards
The following table provides an overview of all test cards available for the
CT Analyzer. The set of test cards actually available on your CT Analyzer
depends on your purchased license(s).
Note: For up-to-date information about available licenses for the CT Analyzer
please refer to the OMICRON website or contact your OMICRON sales contact.
Card Short description
CT-Object This card contains the basic CT data and is always
required to perform a CT test. Refer to page 80.
Burden This card is used to measure a current transformer’s
secondary burden with AC current. Refer to page 100.
Res. Magnetism This card is used to measure the residual magnetism of
CTs. Refer to page 102.
Resistance This card is used to measure the secondary winding
resistance and the primary winding resistance of the CT.
Refer to page 105.
Excitation This card is used to trace the excitation curve of the
current transformer and to determine further CT-specific
parameters. Refer to page 108.
Ratio This card is used to measure the current ratio of the CT
considering the external load or the nominal burden and
to determine the current ratio error and the phase
displacement. Refer to page 119.
Assessment This card shows the automatic assessment of the tested
parameters according to the selected standard. In this
card you can also perform a manual assessment. Refer
to page 125.
Comment In this card you can enter any text, e.g. additional notes
regarding the test. Refer to page 130.
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